From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: Fw: oops during unregister_netdevice interface enslaved to bond - regression Date: Tue, 10 May 2011 15:03:33 +0200 Message-ID: <1305032613.2614.26.camel@edumazet-laptop> References: <1305017672.2614.9.camel@edumazet-laptop> <1305017959.2614.13.camel@edumazet-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: davem@davemloft.net, netdev@vger.kernel.org, Frank Blaschka To: Einar EL Lueck Return-path: Received: from mail-wy0-f174.google.com ([74.125.82.174]:44456 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751659Ab1EJNDi (ORCPT ); Tue, 10 May 2011 09:03:38 -0400 Received: by wya21 with SMTP id 21so4649343wya.19 for ; Tue, 10 May 2011 06:03:37 -0700 (PDT) In-Reply-To: <1305017959.2614.13.camel@edumazet-laptop> Sender: netdev-owner@vger.kernel.org List-ID: Le mardi 10 mai 2011 =C3=A0 10:59 +0200, Eric Dumazet a =C3=A9crit : > Le mardi 10 mai 2011 =C3=A0 10:54 +0200, Eric Dumazet a =C3=A9crit : >=20 > > I am currently working on this stuff [adding even more batching and > > probably bugs as well ], so instead of revert I'll try to find a wa= y to > > fix this. > >=20 > > If you already have a script to reproduce the bug on virtual device= s on > > x86 (not on s390 machines I dont have ;) ), I'll appreciate having = a > > copy of it. > >=20 > > Thanks for the reminder. >=20 > BTW make sure latest linux-2.6 still exhibits the problem, we fixed s= ome > things after original Octavian commit >=20 > List of commits : >=20 > commit ceaaec98ad99859ac90ac6863ad0a6cd075d8e0e > net: deinit automatic LIST_HEAD >=20 > commit f87e6f47933e3ebeced9bb12615e830a72cedce4=20 > net: dont leave active on stack LIST_HEAD=20 >=20 >=20 OK I trigger the bug on linux-2.6 with : modprobe bonding ip link add testa type veth peer name testb ifconfig bond0 up ifenslave bond0 testa ip link del testa I'll cook a patch, stay tuned :)